Escalation Bill Price variation for RA and final bills · index-based formula

Price index database

Official indices: CPI-IW for the Labour Bureau's centres (base 2016 = 100, from January 2024) and the Wholesale Price Index for every item - the current series (base 2022-23 = 100, from April 2023) and the former series (base 2011-12 = 100, from January 2024 to April 2026, continued by linking). Escalation bills take their base and current indices from here.

Latest official month in the database: CPI-IW 2026-08, WPI 2022-23 2026-09, WPI 2011-12 2026-04 (linked to 2026-09). Source: Office of the Economic Adviser, DPIIT - Wholesale Price Index (base 2011-12=100) - eaindustry.nic.in. The OEA stopped this series after April 2026. Later months are linked: the 2022-23 index of the same item multiplied by a linking factor - the OEA's own factors for All commodities (1.53), Primary articles (1.71), Fuel & power (1.65) and Manufactured products (1.44), and for other items the ratio of the geometric means of their FY 2024-25 indices in the two series, the method the OEA used. Items with no clear successor in the new series are not linked; use the 2022-23 series for them. Values entered by hand are highlighted and kept when you update.

WPI Manufacture of medical and dental instruments and supplies [1322050000] Manufactured products

Linked values: from May 2026 = WPI 2022-23 [1322060000] x 1.5503 (item linking factor, ratio of FY 2024-25 geometric means).

MonthIndexChange on previous month Change over 12 monthsWPI all commoditiesSource
Sep 2026165.10 -1.1 +2.61 % 172.1 linked (2022-23 × 1.5503)
Aug 2026166.20 +2.2 +3.29 % 169.5 linked (2022-23 × 1.5503)
Jul 2026164.00 +0.6 +1.17 % 168.3 linked (2022-23 × 1.5503)
Jun 2026163.40 +0.3 +0.80 % 168.8 linked (2022-23 × 1.5503)
May 2026163.10 -2.7 +2.84 % 168.5 linked (2022-23 × 1.5503)
Apr 2026165.80 0.0 +4.54 % 167.6 OEA
Mar 2026165.80 +1.1 +4.54 % 161.2 OEA
Feb 2026164.70 +0.5 +5.24 % 158.4 OEA
Jan 2026164.20 +1.0 +4.92 % 157.6 OEA
Dec 2025163.20 +1.1 +2.90 % 157.2 OEA
Nov 2025162.10 0.0 +2.21 % 156.2 OEA
Oct 2025162.10 +1.2 +2.21 % 155.1 OEA
Sep 2025160.90 0.0 +0.75 % 155.0 OEA
Aug 2025160.90 -1.2 +0.75 % 155.2 OEA
Jul 2025162.10 0.0 +2.21 % 154.4 OEA
Jun 2025162.10 +3.5 +2.21 % 153.7 OEA
May 2025158.60 0.0 -0.31 % 153.7 OEA
Apr 2025158.60 0.0 -1.00 % 154.2 OEA
Mar 2025158.60 +2.1 -1.61 % 154.8 OEA
Feb 2025156.50 0.0 -2.92 % 154.9 OEA
Jan 2025156.50 -2.1 -2.92 % 155.0 OEA
Dec 2024158.60 0.0 - 155.7 OEA
Nov 2024158.60 0.0 - 156.4 OEA
Oct 2024158.60 -1.1 - 156.7 OEA
Sep 2024159.70 0.0 - 154.7 OEA
Aug 2024159.70 +1.1 - 154.4 OEA
Jul 2024158.60 0.0 - 155.3 OEA
Jun 2024158.60 -0.5 - 154.0 OEA
May 2024159.10 -1.1 - 153.5 OEA
Apr 2024160.20 -1.0 - 152.9 OEA
Mar 2024161.20 0.0 - 151.4 OEA
Feb 2024161.20 0.0 - 151.2 OEA
Jan 2024161.20 - - 151.2 OEA

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For a month not yet in the database (e.g. from the latest press release). Updates from the website do not replace hand-entered values; enter the official figure here to correct one.